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- #s- Block Elements ( Alkali and Alkaline earth metals )
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Which among the following alkali metals is most reactive?
Option: 1
Na
Option: 2
K
Option: 3
Rb
Option: 4
Cs
Answers (1)
The reactivity of alkali metals increases as we move down the group due to their larger size and low ionization enthalpy. Thus, Cs is highly reactive among alkali metals.
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